Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing sulfur autotrophic denitrification nitrogen removal biological filter material by utilizing mineral separation sulfur fine powder
Belonging to the field of water treatment, the invention provides a sulfur autotrophic denitrification nitrogen removal biological filter material prepared from beneficiation sulfur concentrate powder, and the sulfur autotrophic denitrification nitrogen removal biological filter material comprises the following mixed powder by mass: 30%-70% of sulfur concentrate powder, 18%-22% of cement, 1%-3% of ammonium bicarbonate, 1%-4% of gypsum, 1%-4% of lime, 1%-4% of diatomite, and 5%-45% of fly ash. The preparation method comprises the following steps: sieving the raw materials in a dry state; mixing the sieved powder according to the mass ratio of the components, and uniformly stirring; adding the mixed powder into a disc balling mill, and spraying water for balling; carrying out heat treatment on the spherical biological filter material for 4-6 hours under the conditions that the temperature is 50-60 DEG C and the humidity is 90%-95%, and carrying out pore forming on the spherical biological filter material; and naturally cooling at 20-25 DEG C, and curing and aging for more than 28 days to obtain the biological filter material. The sulfur source is good in mass transfer and utilization effect, high in denitrification efficiency, uniform in pore distribution and beneficial to growth and reproduction of flora.
本发明提供一种利用选矿硫精粉制备的硫自养反硝化脱氮生物滤料，属于水处理领域，包括以下质量比的混合粉料：硫精粉30％‑70％，水泥18％‑22％，碳酸氢铵1％‑3％，石膏1％‑4％，石灰1％‑4％，硅藻土1％‑4％，粉煤灰5％‑45％；制备方法包括：将各原料在干燥状态下过筛；将过筛后的粉料按照各组分质量比混合并搅拌均匀；将混合粉料加入圆盘成球机，喷水造球；将球形生物滤料在温度为50‑60℃、湿度为90％‑95％的条件下热处理4‑6小时，进行球形生物滤料造孔；在20‑25℃下自然冷却，养护陈化28天以上，得到生物滤料。本发明硫源传质利用效果好，反硝化脱氮效率高，孔隙分布均匀，利于菌群生长繁殖。
Method for preparing sulfur autotrophic denitrification nitrogen removal biological filter material by utilizing mineral separation sulfur fine powder
Belonging to the field of water treatment, the invention provides a sulfur autotrophic denitrification nitrogen removal biological filter material prepared from beneficiation sulfur concentrate powder, and the sulfur autotrophic denitrification nitrogen removal biological filter material comprises the following mixed powder by mass: 30%-70% of sulfur concentrate powder, 18%-22% of cement, 1%-3% of ammonium bicarbonate, 1%-4% of gypsum, 1%-4% of lime, 1%-4% of diatomite, and 5%-45% of fly ash. The preparation method comprises the following steps: sieving the raw materials in a dry state; mixing the sieved powder according to the mass ratio of the components, and uniformly stirring; adding the mixed powder into a disc balling mill, and spraying water for balling; carrying out heat treatment on the spherical biological filter material for 4-6 hours under the conditions that the temperature is 50-60 DEG C and the humidity is 90%-95%, and carrying out pore forming on the spherical biological filter material; and naturally cooling at 20-25 DEG C, and curing and aging for more than 28 days to obtain the biological filter material. The sulfur source is good in mass transfer and utilization effect, high in denitrification efficiency, uniform in pore distribution and beneficial to growth and reproduction of flora.
本发明提供一种利用选矿硫精粉制备的硫自养反硝化脱氮生物滤料，属于水处理领域，包括以下质量比的混合粉料：硫精粉30％‑70％，水泥18％‑22％，碳酸氢铵1％‑3％，石膏1％‑4％，石灰1％‑4％，硅藻土1％‑4％，粉煤灰5％‑45％；制备方法包括：将各原料在干燥状态下过筛；将过筛后的粉料按照各组分质量比混合并搅拌均匀；将混合粉料加入圆盘成球机，喷水造球；将球形生物滤料在温度为50‑60℃、湿度为90％‑95％的条件下热处理4‑6小时，进行球形生物滤料造孔；在20‑25℃下自然冷却，养护陈化28天以上，得到生物滤料。本发明硫源传质利用效果好，反硝化脱氮效率高，孔隙分布均匀，利于菌群生长繁殖。
Method for preparing sulfur autotrophic denitrification nitrogen removal biological filter material by utilizing mineral separation sulfur fine powder
一种利用选矿硫精粉制备硫自养反硝化脱氮生物滤料的方法
ZOU ANHUA (Autor:in) / LI MING (Autor:in) / WANG YUBING (Autor:in)
30.05.2023
Patent
Elektronische Ressource
Chinesisch
Alkalinity Supplement using Sea Shell for Sulfur-utilizing Autotrophic Denitrification
| British Library Online Contents | 2000
| Taylor & Francis Verlag | 2016
| British Library Online Contents | 2000